20434785348 has 24 divisors (see below), whose sum is σ = 47947546080. Its totient is φ = 6773540800.

The previous prime is 20434785347. The next prime is 20434785377. The reversal of 20434785348 is 84358743402.

It is a super-2 number, since 2×20434785348² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20434785297 and 20434785306.

It is not an unprimeable number, because it can be changed into a prime (20434785347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4754553 + ... + 4758848.

It is an arithmetic number, because the mean of its divisors is an integer number (1997814420).

Almost surely, 2^20434785348 is an apocalyptic number.

It is an amenable number.

20434785348 is an abundant number, since it is smaller than the sum of its proper divisors (27512760732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20434785348 is a wasteful number, since it uses less digits than its factorization.

20434785348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9513587 (or 9513585 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 48.

The spelling of 20434785348 in words is "twenty billion, four hundred thirty-four million, seven hundred eighty-five thousand, three hundred forty-eight".